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Finding the Fourth Proportional to 374,836, 562,254.54 and 153,220

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Solution

The fourth proportional to 374,836, 562,254.54 and 153,220 is: 229,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,836 : 562,254.54 = 153,220 : x
  2. Step 2: Convert to fraction form
    374,836/562,254.54 = 153,220/x
  3. Step 3: Cross multiply
    374,836x = 562,254.54 × 153,220
  4. Step 4: Simplify right side
    374,836x = 86,148,640,618.80
  5. Step 5: Solve for x
    x = 86,148,640,618.80/374,836
  6. Step 6: Final answer
    x = 229,830.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.